<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
		<!-- 轮播图区域 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
		  <swiper-item v-for="(item, i) in goods_info.pics" :key="i">
		    <image :src="item.pics_big" @click="preview(i)"></image>
		  </swiper-item>
		</swiper>
		
		<!-- 商品信息区域 -->
		<view class="goods-info-box">
		  <!-- 商品价格 -->
		  <view class="price">￥{{goods_info.goods_price}}</view>
		  <!-- 商品信息主体区域 -->
		  <view class="goods-info-body">
		    <!-- 商品的名字 -->
		    <view class="goods-name">{{goods_info.goods_name}}</view>
		    <!-- 收藏 -->
		    <view class="favi">
		      <uni-icons type="star" size="18" color="gray"></uni-icons>
		      <text>收藏</text>
		    </view>
		  </view>
		  <!-- 运费 -->
		  <view class="yf">快递：免运费</view>
		</view>
		
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		<!-- 商品导航组件区域 -->
		<view class="goods_nav">
		  <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	import { mapState, mapMutations, mapGetters } from 'vuex'
	export default {
		computed: {
		  ...mapState('m_cart', []),
		  ...mapGetters('m_cart', ['total'])
		},
		watch: {
		  total: {
		    handler(newVal) {
		      const findResult = this.options.find(x => x.text === '购物车')
		      if (findResult) {
		        findResult.info = newVal
		      }
		    },
		    immediate: true
		  }
		},
		data() {
			return {
				goods_info: {},
				options: [{
				  icon: 'shop',
				  text: '店铺',
				  infoBackgroundColor: '#007aff',
				  infoColor: "red"
				}, {
				  icon: 'cart',
				  text: '购物车',
				  info: 0
				}],
				buttonGroup: [{
				    text: '加入购物车',
				    backgroundColor: '#ff0000',
				    color: '#fff'
				  },
				  {
				    text: '立即购买',
				    backgroundColor: '#ffa200',
				    color: '#fff'
				  }
				]
			};
		},
		onLoad(options) {
			const goods_id = options.goods_id
			this.getGoodsDetail(goods_id)
		},
		methods:{
			...mapMutations('m_cart', ['addToCart']),
			async getGoodsDetail(goods_id) {
			  const { data: res } = await uni.$http.get('/api/public/v1/goods/detail', { goods_id })
			  if (res.meta.status !== 200) return uni.$showMsg()
			
			  res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp/g, 'jpg')
			
			  this.goods_info = res.message
			},
			preview(i) {
			  uni.previewImage({
			    current: i,
			    urls: this.goods_info.pics.map(x => x.pics_big)
			  })
			},
			onClick(e) {
			  if (e.content.text === '购物车') {
			    uni.switchTab({
			      url: '/pages/cart/cart'
			    })
			  }
			},
			buttonClick(e) {
			  if (e.content.text === '加入购物车') {
			    // 组织商品的信息对象
			    const goods = {
			      goods_id: this.goods_info.goods_id,
			      goods_name: this.goods_info.goods_name,
			      goods_price: this.goods_info.goods_price,
			      goods_count: 1,
			      goods_small_logo: this.goods_info.goods_small_logo,
			      goods_state: true
			    }
			
			    // 调用 addToCart 方法
			    this.addToCart(goods)
			  }
			}
		}
	}
</script>

<style lang="scss">
swiper {
    height: 750rpx;

    image {
      width: 100%;
      height: 100%;
    }
  }
  .goods-info-box {
    padding: 10px;
    padding-right: 0;
  
    .price {
      color: #C00000;
      font-size: 18px;
      margin: 10px 0;
    }
  
    .goods-info-body {
      display: flex;
      justify-content: space-between;
  
      .goods-name {
        font-size: 13px;
        margin-right: 10px;
      }
  
      .favi {
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        border-left: 1px solid #efefef;
        color: gray;
      }
    }
  
    .yf {
      font-size: 12px;
      color: gray;
      margin: 10px 0;
    }
  }
  
  .goods_nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
  }
  
  .goods-detail-container {
    padding-bottom: 50px;
  }
</style>
